The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 |
The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 |
Sep 11 2017, 09:50 AM
Post
#1
|
||
Senior Member Group: Members Posts: 2431 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Welcome to Route 66... Er, make that Site 66
Drive 0000 on Sol 1812. Roughly stitched L-NavCam using MS ICE Midnight Planets reporting it as ~5.6m ESE (115º) link |
|
|
||
Sep 14 2017, 11:39 AM
Post
#2
|
|
Member Group: Members Posts: 934 Joined: 4-September 06 From: Boston Member No.: 1102 |
The really fine laminations indicate suspension fallout in reasonably deep still water, so the crater was experiencing a wet environment when this level was laid down. Given the original permeability of the deposits my horribly unreliable intuition suspects that the hematite developed during a dry cycle via a mixing interface between groundwater and water infiltrating from a disconnected stream, fed by acidic meltwater at the beginning of the volcanic period that gave rise to the sulphate formation. Development in an open rather than closed environment. I assume the spot was cleared of dust by laser blasts, not by brushing? If so I don't think I have ever seen this type of cleaning. Might the shiny surface be hematite? Not berries, but sheets??? -------------------- |
|
|
Lo-Fi Version | Time is now: 27th September 2024 - 03:18 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |